Survivors of the mass shooting at Marjory Stoneman Douglas High School last week are crying out for something to be done about it … and thousands have gathered in support.

Emma Gonzalez, a senior at the Parkland, FL school, gave a passionate speech at the federal courthouse in Fort Lauderdale Saturday … calling out for gun control in the wake of the massacre by Nikolas Cruz that left 17 people dead.

Emma blasted the treatment of her fellow students following the shooting, statements by President Trump and other politicians, and the NRA … before leading chants of “We call BS!” Check out her full speech below …

Meanwhile in Miami — less than 50 miles away from the site of the school shooting — one of the region’s largest gun shows is also going down. More than 140 vendors were reportedly at the Miami Gun Show Saturday morning, selling a variety of weapons … including AR-15s.